When Git submodules aren’t updating, it may be due to incorrect commands or misconfigured paths. Use `git submodule update` and ensure the submodule path is correct.

When Git submodules fail to update, it’s often due to issues with incorrect commands or outdated configuration. Start by using git submodule update --remote to pull the latest changes from each submodule. If your project doesn’t reflect updates, verify the .gitmodules file to ensure submodule paths are correct; submodule paths can change if the upstream repository is restructured. For consistent updating, use git pull --recurse-submodules to pull changes in both the main repository and all its submodules. Ensure you’ve initialized submodules correctly, particularly when cloning fresh repositories, by using git submodule init && git submodule update. Also, confirm each submodule is on the intended branch, as submodules are often set to specific branches or tags, which may not automatically update. Address any permissions required for private repositories, such as SSH keys or access tokens, to ensure smooth updates across all submodules.